TO RIO JANEIRO. 



29 



rescence. Its brilliancy was so great, that it might truly be said to 

 have the appearance of being on fire. We made some experiments 

 to ascertain the depth to which these phosphorescent animalcula 

 extended. After many trials they were not found below eighteen 

 fathoms. The temperature of the water at that depth was 79°, at 

 the surface 80°, and at one hundred fathoms depth 58°. The mean 

 temperature of the air from Madeira until our arrival off this port, 

 was found to have increased from 69° to 78°, while the difference in 

 the water was from 71° to 81°. 



On the morning of the 7th, we anchored in Porto Pray a bay. The 

 island of St. Jago presents a very different appearance from Madeira, 

 particularly the southeastern portion of it, though its formation is 

 know T n to be similar. There are many high peaks and mountains 

 in its centre, which afford a fine background for the barren and 

 uninteresting coast scenerv. 



ye* v 



The time of our arrival was just after the rainy season, the island 

 consequently presented a more verdant appearance than it does at 

 other seasons of the year. 



Our Consul, F. Gardiner, Esq., came on board and made us wel- 

 come to all the island afforded. An officer was despatched to call 

 upon his excellency the governor, to report our arrival, who proved 

 to be a black man. Knowing that the regulations required permission 



